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Category Archives: radxa

ARM – Rock2 – Kernel 4.6-rc4 – MMC Swaparound – Bug or Feature?

Adventures With Linux ™ Posted on April 21, 2016 by RGMay 23, 2016

I had been running Kernel 4.6-rc2 on the Radxa Rock2 without any issues, and decided to update to recently-released Kernel 4.6-rc4.. Brief details of changes from -rc3 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1604.2/00610.html The boot failed, and I then compiled/installed 4.6-rc3 to see if that would have been OK, and it was.. I then noticed something odd in the failed … Continue reading →

Posted in boot, fix, Hacks, kernel, Linux / ARM, radxa, Rock2, success, U-Boot | Tagged arm, kernel 4.6-rc4, linux, mmc swapped, patch, radxa, rock2, success, workaround | 2 Replies

ARM – Rock2 to Kernel 4.6-rc2 – Ethernet OK, Now..

Adventures With Linux ™ Posted on April 4, 2016 by RGApril 4, 2016

Updated the Rock2 to Kernel 4.6-rc2, and the Ethernet problem has been fixed.. Fedora 23 (Twenty Three) Kernel 4.6.0-rc2 on an armv7l (ttyS2) …………. ]# uname -a Linux rgrock2 4.6.0-rc2 #1 SMP Sun Apr 3 21:05:44 EDT 2016 armv7l armv7l armv7l GNU/Linux Details of Kernel changes from -rc1 are here:   http://lkml.iu.edu/hypermail/linux/kernel/1604.0/01298.html Robert Gadsdon.  April 3, 2016. … Continue reading →

Posted in compilation, Linux / ARM, radxa, Rock2 | Tagged 4.6-rc2, arm, armv7, ethernet ok, kernel, linux, radxa, rock2 | Leave a reply

ARM – Rock2 – Finally an Ethernet Fix that Works..

Adventures With Linux ™ Posted on April 1, 2016 by RGApril 1, 2016

After a lot of searching – and more testing (mostly unsuccessful..) I finally have a set of two patches that fix the Ethernet driver problem with the Rock2 in 4.6-rc1..     The problem is that the stmmac driver is common to several SOC setups, and each maintainer seems to have produced their own version of a fix.. The … Continue reading →

Posted in armv7, Hacks, Linux / ARM, Performance, radxa, Rock2, success | Tagged ethernet driver, kernel 4.6-rc1, patches, radxa, rock2, stmmac, success | Leave a reply

ARM – Rock2 to 4.6-rc1 – and Ethernet Fix Fails..

Adventures With Linux ™ Posted on March 27, 2016 by RGMarch 27, 2016

Updated the Rock2 to Kernel 4.6-rc1: ……… Fedora 23 (Twenty Three) Kernel 4.6.0-rc1 on an armv7l (ttyS2) ……………….. # uname -a Linux rgrock2 4.6.0-rc1 #1 SMP Sun Mar 27 03:47:06 EDT 2016 armv7l armv7l armv7l GNU/Linux The stmmac Ethernet driver bug from 4.5 Final has still not been fixed, and the driver code has changed in 4.6-rc1, … Continue reading →

Posted in armv7, fix, Hacks, kernel, Linux / ARM, radxa, Rock2, success | Tagged arm, armv7, ethernet patch, kernel 4.6-rc1, linux, radxa, rock2, success, update | Leave a reply

ARM – Rock2 – Not so Hot, Now..

Adventures With Linux ™ Posted on March 23, 2016 by RGMarch 23, 2016

Finally managed to cobble together a rudimentary case and fan with heatsink for the rock2, and now I can compile correctly (# make -j5, etc..) and run # git clone… without the system overheating and rebooting..    Just two sheets of perspex, and some assorted m3 nylon pillars and screws.. The 5V power supply needs to be around … Continue reading →

Posted in armv7, Crash and Burn.., Hacks, hardware, Linux / ARM, Performance, radxa, Rock2, rx3288 | Tagged case, cooling, fan, hardware, radxa, rock2, success | Leave a reply

ARM – Rock2 – Fix for SDCard Boot, and Ethernet..

Adventures With Linux ™ Posted on March 19, 2016 by RGMarch 19, 2016

Kernel 4.5-rc7 had booted successfully on the Radxa Rock2, but 4.5 Final failed, as the SDcard was ‘loaded’ just too late: mmc_host mmc1: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0) dwmmc_rockchip ff0f0000.dwmmc: 1 slots initialized ……………………… VFS: Cannot open root device “mmcblk1p1” or unknown-block(0,0): error -6 ………………………… Kernel panic – … Continue reading →

Posted in arm, armv7, boot, compilation, fix, Hacks, kernel, Linux / ARM, radxa, Rock2, U-Boot | Tagged boot fail, ethernet driver fix, fix, radxa, rock2, rootdelay, stmicro, stmmac, success | Leave a reply
Original content © Robert Gadsdon 2013
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